100% brand new with high quality. 2.4G wireless connectivity.Wireless technology can provide a reliable connection and will not be subject to any interference in the range of up to 10 meters, and at the same time will not have any impact on your health. Precision optical engine.Agilent optical engine, 1200dpi high precision tracking and positioning. Free intelligent connection code.The compact receiver connected to the computer"s USB port, the mouse battery is fitted with one second instant reaction, without the cumbersome procedures of the code, it can let you enjoy speed wireless freedom. The pico Nano receiver.Compact USB wireless receiver, plug and forget. Even if you want to remove the receiver, it can be inserted into the bottom of the specialized storage warehouse, easy to carry Symmetrical design.Ergonomic the symmetrical hand type design, suitable for different habits, ambidextrous. Free power switch function.Power switch in the bottom of the mouse, and when you do not use for a long time, the mouse will be fully automated power, saving electricity. So every time to forget the troubles of the related mouse Four-power saving mode.The four-power saving mode, respectively, into the mouse when not in different power-saving hibernation to save power effectively.